Results 101 to 110 of about 463,023 (218)

Numerical Study of Unsteady Properties of Ethylene/Air Turbulent Jet Diffusion Flame with Detached Eddy Simulation

open access: yes, 2016
In this paper, unsteady process of ignition and combustion of turbulent plane-jet diffusion flame of ethylene/air is numerically simulated with detached eddy simulation (DES) and a reduced kinetic mechanism of ethylene.
Zhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.   +3 more
core   +1 more source

Investigation of the Evolution Mechanism and Multiphysics Coupling in Tree‐Contact Single‐Phase‐to‐Ground Fault

open access: yesHigh Voltage, EarlyView.
ABSTRACT Tree‐contact single‐phase‐to‐ground fault (TSF) is a common and hazardous type of failure in distribution networks. TSF is likely to occur when overhead conductors contact moist tree branches, potentially leading to insulation breakdown, posing serious threats to grid safety.
Wenjun Ning   +5 more
wiley   +1 more source

Flame stretch statistics in premixed jet flames at high reynolds number

open access: yes, 2017
A set of Direct Numerical Simulations (DNS) of turbulent jet flames is performed to investigate the effect of Reynolds number on flame characteristics. The simulations feature finite rate chemistry with 16 species and up to 22 billion grid points.
Attili, Antonio   +2 more
core  

MIRACLE URBANIZATION: Spatial Production and Political Legitimation in the Sochi 2014 and Beijing 2022 Olympics

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract From desert ski resorts to subtropical Winter Games, there is a global proliferation of ‘mission‐impossible’ mega‐projects. The prevailing frameworks of city branding and urban entrepreneurism fail to explain the political logics behind these seemingly irrational projects.
Yiqiu Liu, Sven Daniel Wolfe
wiley   +1 more source

Study on characterization of flame propagation of spontaneous ignition caused by high-pressure hydrogen leakage

open access: yesCase Studies in Thermal Engineering
As an ideal energy source, hydrogen is highly susceptible to spontaneous ignition once leaked, which is an urgent issue that needs to be addressed. Based on the shock tube model, this paper investigates flame propagation under various pressures, tube ...
Gan Cui   +6 more
doaj   +1 more source

Modern Fire Safety Protocols in the Archeological Contexts: A New Tool for Studying the Health and Behavioral Effects of Fire Use in Semi‐Closed Spaces

open access: yesArchaeometry, EarlyView.
ABSTRACT This study evaluates the application of computational fluid dynamics (CFD) simulations, integrated with controlled fire experiments, to investigate combustion processes in semi‐closed spaces. The framework enables systematic modeling of smoke dispersal, particulate transport, and hearth performance under variable morphologies and ventilation ...
Yafit Kedar
wiley   +1 more source

Experimental Investigation on Liquid Film Dynamics and Fire Suppression Performance of Free Water Jets Impinging on Insulated Vertical Façades

open access: yesFire
To improve the efficiency of jet-based fire suppression for high-rise building façade fires, this study experimentally investigates the liquid film formation characteristics and fire suppression behavior of water jets impinging on insulated vertical ...
Chao Ji   +3 more
doaj   +1 more source

Delipidisation of wool fibres and the subsequent beneficial properties of delipidised wool fibres

open access: yesColoration Technology, EarlyView.
Abstract Wool fibres are complex matrices of proteins and fatty acids/lipids found both internally and externally. 18‐methyleicosanoic acid (18‐MEA) is covalently bound to the surface of the fibre via a thio‐ester link, and is considered one of the most important lipids as it is responsible for the hydrophobic properties of wool fibres.
Jamie A. Hawkes, David M. Lewis
wiley   +1 more source

Solubility and combustion characterization of methanol/jet A-1 blends enhanced with n-octanol and diethyl ether in lean prevaporized premixed burner

open access: yesFuel Processing Technology
This study investigates the stability of mixtures and combustion characteristics of methanol and hydrous methanol blended with Jet A-1 fuel, utilizing n-octanol and diethyl ether (DEE) as co-solvents and ignition boosters in a lean premixed prevaporized (
Ahmed I. EL-Seesy   +3 more
doaj   +1 more source

Circadian disruption elicits sex‐specific gut microbiota, endocannabinoidome, and lipid mediator responses

open access: yesThe FEBS Journal, EarlyView.
Circadian disruption via constant light induces sex‐specific remodeling of the microbiome, lipid mediators, and immune responses. Females exhibit broader gut microbiota alterations, reduced jejunal oxylipins, increased hypothalamic N‐acylethanolamines, and a more inflammatory cytokine profile. Muscle responses are sex‐ and fiber type‐dependent: females
Pejman A. Pashaki   +7 more
wiley   +1 more source

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